the problem: less coolent in radiator after drive,I need top up everytime when engine is cool(about 250ml sometime more sometime less). the coolent in overflow bottle is getting more and more. so thats mean: coolent flow to overflow bottle when hot, but when cool down the coolent not fully go back to radiator. i did some record. the coolent still go in to radiator when cold but not as much as the coolent from radiator to overflow bottle when hot. say coolent from radiator to overflow bottle 500ml when hot, when its cool down the coolent only come back to radiator 250ml.
I went to a few place to check the cooling system. all good. no problem at all. all of them suggest me try to change a cap.
then I bought a new radiator cap(1.3bar), nothing changed.
but my car never overheat always 75-85degree on PFC. can i just drive like this? don't need really care about it??? I worried the coolent in radiator will getting less and less during time.
I got arc radiator and nismo cap.
car is r34gtr.
anyone help please!!!